| 2005 Heineken Open | |
|---|---|
| Date | 10–17 January |
| Edition | 38th |
| Category | International Series |
| Draw | 32S / 16D |
| Prize money | $401,000 |
| Surface | Hard / outdoor |
| Location | Auckland, New Zealand |
| Venue | ASB Tennis Centre |
| Champions | |
| Singles | |
 Fernando González[1] | |
| Doubles | |
 Yves Allegro /  Michael Kohlmann[2] | |
The 2005 Heineken Open was a men's ATP tennis tournament held at the ASB Tennis Centre in Auckland, New Zealand. It was the 38th edition of the tournament and was held from 10 January to 17 January 2005 and played on outdoor hard courts. Fifth-seeded Fernando González won the singles title.
- ^ "2005 Auckland – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2005 Auckland – Doubles draw". Association of Tennis Professionals (ATP).